Yellowstone spinoff series Y: Marshals has rounded out the main cast, with three more cast members of Taylor Sheridan’s mothership series, Gil Birmingham, Brecken Merrill and Mo Brings Plenty, joining Luke Grimes as series regulars.
Additionally, Arielle Kebbel (Rescue: HI-Surf), Ash Santos (Pulse) and Tatanka Means (Reservation Dogs) have been cast as series regulars and Brett Cullen as recurring in the offshoot, joining star Grimes and previously cast fellow lead Logan Marshall-Green.
In Y: Marshals, with the Yellowstone Ranch behind him, Kayce Dutton (Grimes) joins an elite unit of U.S. Marshals, combining his skills as a cowboy and Navy SEAL to bring range justice to Montana, where he and his teammates must balance family, duty and the high psychological cost that comes with serving as the last line of defense in the region’s war on violence.
Merrill will reprise his role as Kayce’s son, Tate Dutton, with Birmingham and Mo Brings Plenty reprising their Yellowstone characters as Thomas Rainwater and Mo, respectively. MIA from the new series is Kelsey Asbille, who played Kayce’s wife and Tate’s mom Monica on the mothership. Her absence will likely be explained.
Kebbel, Santos and Means will plays Belle, Andrea and Miles, respectively — all members of the U.S. Marshals. Cullen plays Harry Gifford, the head of the U.S. Marshals in Montana.
The series is produced by Paramount TV Studios, with Sheridan executive producing along with David C. Glasser exec producing for 101 Studios as well as Hudnut, who serves as showrunner, Grimes, Yaitanes, John Linson, Art Linson, Ron Burkle, David Hutkin, Bob Yari, Michael Friedman, and Keith Cox. Y: Marshals will be distributed by Paramount Global Content Distribution.
Kebbel, who most recently starred in Fox’s Rescue: HI-Surf, will be seen in I Can Only Imagine 2, coming out in 2026. She is repped by Independent Artists Group, Untitled Entertainment and Hansen Jacobson Teller.
Santos is coming off Netflix’s medical drama Pulse. She is part of the Taylor Sheridan universe with her recurring role on Mayor of Kingstown. She is repped by M88, Gersh and Myman Greenspan Fox.
Veteran Cullen can be seen in the golf film The Long Game and the Netflix series Ransom Canyon. He is repped by Innovative Artists and Lovett Management.
Means, whose recent credits include Killers of the Flower Moon, Reservation Dogs, Echo, Horizon: An American Saga and Ransom Canyon, is repped by Amsel, Eisenstadt, Frazier & Hinojosa Inc., and Authentic Talent and Literary Management.
Birmingham’s recent credits also include Poker Face. He is repped by Amsel, Eisenstadt, Frazier & Hinojosa. Merrill, also seen in the indie Lifeline and on NBC’s This is Us, is repped by Industry Entertainment.
This marks Mo Brings Plenty’s third Taylor Sheridan series, joining Yellowstone and Lawmen: Bass Reeves.
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